Filtering apparatus.



D. J. KELLY.

PILTERING APPARATUS.

APPLICATION FILED MAR. s, 1911.

Patented J an. 30, 1912.

Javcdffif? cf UNITED STATES PATENT OFFICE.

DAVID J. KELLY, SALT LAKE CITY, UTAH.

FILTERING APPARATUS.

Specification of Letters Patent.

Patented Jan. 30,1912.

Application filed March 3, 1911. Serial No. 611,967.

To all whom it may concern:

Be it known that I, DAVID J. KEL Y, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Filtering Apparatus, of which the following is a speci fication.

This invention which relates to certain new and useful improvements in head closing mechanisms for tanks, has been found of great value when used in connection with the apparatus for separating and filtering slimes for which Letters Patents were herewhich I will hereinafter describe and claim.

In the accompanying drawings forming a part of this specification and in which similar reference characters indicate like parts in the severalviews: Figure 1 is a sectional view of the open end of a pressure tank showing the removable head therefor, and

means for locking and unlocking the head. Fig. 2 is an end view showing the head in elevation. Fig- 3 is a detailed plan view partially in section, showing the cranks and toggle-links for operating the removable head. Fig. 4 is a detail in plan and partial section of a means for locking the togglelinks after adjustment.

The apparatus with which I prefer to use the present invention includes a tank, R, which is preferably set on an incline and may have a general cylindrical form, although it may have any other desired suitable cross-sectional shape. This tank has one of its ends, say the latter one, capable of being opened and closed for the purpose of introducing and removing a carrier which contains the filter frames of any well known and proper construction and which frames may follow the general idea of the corresponding frames of my former patents; These frames and carrier form no essential part of the presentinvention and accordingly they are not shown; the object of making the lower head movable is to permit the carrier and its attached frames and the contained matter which has been collected or caked upon the filters during the filtering operation, to-be removed to a point outside of the tank so that the caked material may be detached from the frames and the frames cleaned and the carrier returned to the tank for subsequent filtering function. As in my former patents above referred to, the removable head Q, and .the carrier are accurately guided in their in and out movements relatively to the tank by suitable track rails, 10, upon which travel suitable wheels 12, shown in Fig. 2.

Securely fixed around the open end of the crank is a ring, S, which is pierced at suitable points to receive the U-shaped bolts, 0, having nuts at their free ends by which they may be secured and adjusted, said ring having also in its face a groove, 13, in which a packing may be contained; a corresponding flange, 14, on the inner face of the locking head, Q, is designed to engage the packing.

and to form a tight joint between the head and tank as disclosed in'my aforesai. patents.

carrier and movable therewith, it accordingly forms the closure for the open end of the tank when the carrier is run back into are slidably mounted between said guides and have curved faces adapted to operate against the fulcrum lugs.

Projecting from the center of the head is a fixed shaft, A, and on this shaft is slidably mounted the adjusting nut, B, the nut being in the form of a sleeve and being threaded on its exterior; on this threaded portion of the nut is mounted the lever spacing collar, C, to which the inner ends of the radial levers, P, are pivotally connected. From this construction, it will be apparent that when the adjusting nut, B, is rotated, it causes the lever spacing collar,'C, to move backward orforward and in this manner the tension of the locking head, Q, against the gasket in the groove, 13, formed in the ring casting, S,can be regulated at will.

The head, Q, being attached to the filter former i On the shaft, A,-adjacent the adjusting nut, B, isa cross-head, E, having a groove,

in which .worksa split ring, D,'which is secured to the adjusting nut. The cross head, E, is slidably mounted on the shaft, but is prevented from rotation thereon through its connections with the togglelinks F F.

lxtending crosswise of the head, is a suit- I able shaft,.H, which'is mounted in bearings, I and K, .said shaft having fixed to it a handle, J, or other suitable means, by which it may be rotated in its bearings. This shaft has fixed to it the spaced crank arms, G G, and to the inner ends of these arms are pivotally' connected the toggle-links, F F, whose opposite ends are pivotally connected to the cross-head, E, as shown in Fig. 3. I

From the head, Q, projects a bracket or extension, X, Figs. 1 and 4, having a bearing in which the shaft, H, operates and on this shaft adjacent the outer end of this extension is keyed or otherwise fixed a disk,

L, havinga ho'le, M, adapted to be engagedby a spring-pressed pin, M, which is slidably mounted in the bracket or extension, K, and has an operating hand piece on its outer end, said pin belng adapted to be forced into the hole in the disk when the two are brought into register, which will be when the parts have been moved to bring the toggle-levers, F, on the dead-center when the head is locked.

In order to positively hold the outer ends of the radial levers, P, against the fulcrum bearings, T, when the levers are moved outwardly, as shown by dotted lines in Fig. 1, I may employ some suitable form of spring, V, which construction, however, is substantially disclosed in my former patents.

From the foregoing description it will be apparent that when the shaft, H, is turned the cranks, G G, are moved to cause the toggle-links, F F, to transmit motion to the cross-head, E, and its attachments and to cause these parts to move along the central shaft, A. The movement of the collar, C, to or. from the head, Q, causes the outer ends of the radial locking levers, P, to engage or disengage the U-bolts, 0, thus looking or unlocklng the head. This movement is accomplished by a simple manipulation of the hand lever and the intermediate connections.

The cranks and toggle-levers cause the forward or backward movement of 'the lever-spacing collar, C, and its attachment, according to the direction of rotation of the hand-lever, J, which mechanism stand point of rapidity and convenience in manipulation.

It-will also be observed that the cranks, G G, and toggle-levers, F F, exert the greater power at a point near the dead center as here the velocity? of travel is least, therefore, the hand lever has its greater power at the required moment, since the greatest" tension comes on the joint between the head, Q, and the ring, S, after the levers, P, have engaged the U-bolts, O.

The cranks, G G, and toggle levers, F F, constitute a mechanism, and the construction of theparts may be varied in general detail and design without departing from the spirit of the invention. I

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:-

1. In an apparatus of the character described, the combination with a tank, a removable head forming a closure therefor, said head having a projecting shaft, and a locking mechanism between the tank and head, said mechanism including a freely lengthwise slidable collar on the shaft and radially arranged locking levers carried thereby, of a toggle-mechanism, and connections between the same and said collar for operating the levers and locking and unlocking the head.

2. In an apparatus of the character described, the combination with a tank, a removable head forming a closure therefor, said head having a shaft projecting outwardly from its center, a collar slidable on said shaft, and locking levers carried by the collar and having outer ends engageable with the tank to lock the head to the tank, of a rotatable shaft supported from the head and toggle connections between the same and said collar whereby the head is locked and unlocked during the rotation of said shaft.

3. In an apparatus of the character described, the combination of a tank, a removable head forming a closure for one end thereof, a shaft projecting centrally from the head, an adjusting nut slidably mounted on the shaft, a .collar mounted on the adjusting nut, radially-arranged levers having inner ends pivotally connected to the collar, a toggle-mechanism connected with the adjusting nut and moving the collar inand out on the shaft, and means on the tank engaged by the, outer ends of said levers for locking the head to the tank, said levers having intermediate portions to fulcrum against the head.

4. The combination with a tank, a removable head forming a'closure for one end thereof, a shaft projecting from the head,

lar, the outer ends of said levers engaging the tank and an intermediate portlon of said levers'fulcruming against the head for locking the head to the tank, a shaft transverse of said head having crank-arms, and a toggle-link connection between said cranks and the adjusting nut, whereby the nut and its attached collar are moved 1n and out on the first named shaft duringthe rotation of the cross-shaft to lock and unlock the head.

5. An improved locking head mechanism for pressure tanks, said mechanism comprising the combination with the tank, of a lockin head adapted to close the open end thereo a shaft projecting centrally from the head, an externally threaded nut slidably mounted on said shaft, a collar carried by the threaded nut and movable therewith and adjustable relatively thereto, radiallyarranged levers having inner ends pivoted to the collar and having outer portions adapted to fulcrum against the head, looking bolts fixed to and projecting from the tank and engaged by the outer extremities of said levers, a cross-head slidable on the shaft in unison with the adjusting nut, a shaft extending crosswise of the head, crank arms on the second shaft, and toggle-links pivotally connected to the, outer ends of the cranks and .to said cross head whereby the adjusting nut is moved in and out on the shaft to lock and unlock the head to the tank.

6. An improvedlocking head mechanism for pressure tanks, said mechanism com rising the combination with the tank, of a ock-' ing head adapted toclose the open end thereof, a shaft projectin centrally from the head, an externally threa ed nut slidably mounted on said shaft, a. collar carried by the threaded nut and movable therewith and adjustable relatively thereto, radially-arranged levers having inner ends pivoted to the collar and havlng outer ortions adapted to fulcrum against the head, locking bolts fixed to and projecting from the tank and engaged'by the outer extremities of said levers,

locking-head adapted to close the open end thereof, a shaft projecting centrally from the head, an externally threaded nutslidably mounted on said shaft, a collar carried by the threaded nut and movable therewith and adjustable relatively thereto, radiallyarranged levers having inner ends pivoted to the collar and having outer portions adapted to fulcrum against the head, locking bolts fixed to and projecting from the tank and engaged by the outer extremities of said levers, a cross-head slidable on the shaft in unison with the adjusting nut, a Shaft extending cross-wise of the head, crank-arms on the second-shaft, and togglelinks pivotally connected to the outer ends of the cranks and to said cross-head whereby the adjusting nut is moved in and out on the shaft to lock and unlock the head to the tank, .adisk fixedto the cross shaft having an opening,- a bracket extension from the locking head, and a spring-pressed pin in said extension adapted to enter the opening in said disk when the two parts are brought into register whereb the shaft and the toggle connections are ocked in their adjusted position.

In testimon whereof I aflix my signature in presence 0 two witnesses.

DAVID J. KELLY.

Witnesses:

' C. B. FELT,

Gno. F. FELT. 

